He explained the system to me (NOT explained me the system). 他向我介绍了这个系统。 2. 【释义】 to give a reason for something or to be a reason for something 说明(是)…的原因: 【例句】 Wait! I can explain everything. 等一下! 我可以解释一切。
1. I've got to explain about it. 我得解释一下此事。 explain 情景对话 请求帮助 explain的意思 A:Would you mind doing something for me? 你不介意帮我做点事吗? explain的解释 B:I would if I could. 没问题,只要我办得到。 explain在线翻译 ...
explain的用法：1、explain sth(to sb)，意思是：说明、解释某事，向某人解释某事。2、explain的习语有：explainyourself，意思是：为自己的行为作说明;explain away，意思是：为自己辩解。例句1、~ sth (to sb) 解释;说明;阐明to tell sb about sth in a way that makes it easy to understand[V...
the table column shows a value like <unionM,N> to indicate that the row refers to the union of the rows with id values of M and N. 翻译:id为SELECT的标识符。它
TO EXPLAIN, OR NOT TO EXPLAIN?Beverly Mills
MySQL explains how it would process the statement, including information about how tables are joined and in which order. For information about using EXPLAIN to obtain execution plan information, see Section 8.8.2, “EXPLAIN Output Format”. 当EXPLAIN与可解释语句一起使用时,MySQL将显示来自优化器的关...
explain v [Tn, Tw, Dn.pr] ~ sth (to sb) make sth plain or clear; give the meaning of sth 解释; 讲解; 说明; 阐明: A dictionary explains the meaning of words. 词典是解释词义的工具书. * He explained his plan in some detail. 他仔细地说明了自己的计划. * Could you ...
EXPLAIN is used to obtain a query execution plan (that is, an explanation of how MySQL would execute a query). 简单翻译一下,就是explain用于获取查询执行计划(即MySQL是如何执行一个查询的)。 工作中,我们会遇到慢查询,这个时候我们就可以在select语句之前增加explain关键字,模拟MySQL优化器执行SQL语句,从而...
If you want to make your queries as fast as possible, look out for Extra column values of Using filesort and Using temporary, or, in JSON-formatted EXPLAINoutput, for using_filesort and using_temporary_table properties equal to true. ...
ロングマン現代英英辞典より ex‧plain/ɪkˈspleɪn/●●●S1W1verb[intransitive, transitive] 1to tell someone about something in a way that isclearoreasytounderstandHe carefully explained the procedure.explain (to somebody) why/how/what etcThe librarian will explain how to use the cata...